Process of preparing storage-battery elements.



D. P. PERRY. PROOESS 0F PREPARING STORAGE BATTERY ELEMENTS. APPLIOATION rum) B31126, 1903.

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Patented Aug. 17, 1909.

DAVID P. PERRY.

'IllIRDS 'lU WILLIAM MURIUSON, HARD, OF DES MOINlCh, IOWA.

U!" ('llll'AtiU, ILLINOIS, ASSIUNUH, BY MESNI'I ()l lllltMlu, lLLlNUIS, ANI) 0Nl'l'lllll(l) TO M. A. LUM- PROOEBB 0F PBB?ARIHG STORAGE-BATTERY ELEIdTENTB.

Bpeciflcation ot Letters Patent.

Patented Aug. 17, 1909.

Application flied December 26, 1905. Serial No. 186,765.

To all whom it may concern:

Be it known that 1, DAVID l. Prznnr, a citizen of the United States of America, and resident of Chicago, Cook county, Illinois,

have invented a certain new and useful lmrovemcntin Processes of Preparing Storageattery Elements, of which the following is a specification.

M invention contemplates a novel and high y clli'cicnt prmess or method of preparof wire dune, there hoing-sullicient space between tl e two cylinders to accommodate the oxid; and this cylindric structure, as will also hereinafter more fully at ipear, can then be employed as the positive element in a storage battery comarising, l' or example, an electrolyte consistinli of a plain alkaline solution, and a suitable negative element.

My improved 'rocess, involvin as itsloes a particu arly e ective method 0 .pre aring copper and cadmium, is productive 0 {good results, and enables me to provide a positive element of such nature as to insure a hi h degree-of efliciency and serviceability on t w part of a storage-battery oithis character. In the accompanying drawings, Figure 11 is a perspective of a. finished storage-battery element constructed in accordance with the roved process Fig. :3

rinciples of my im the element shown in is a cross-section o i1 carrying out my invention, any suitable form of grid orsup )ort may be employed. For example, a special y constructed grid or support may be employed com arising inner and outer cylinders A and B 0 copper wiregauze or other like suitable materia These concentrically arranged cylinders of. copper wire gauze preferably have suliicient space. between them to accommodate the specially prepared oxid oi copier and ciidi'inumC.

ill be understood trat the two cylinders of co per wire gauze can be mounted or securet together m any suitable mumier, us

.ter the copper and cadmium my invention relates to the process of pre pariup theeopper and cadmium and ofnpplymg it to the cleinentjmthrrthan to the mechanical construction and details of such clement. .ls shown in Fig. 2, however, a cylindric negative element l), of any suitable known or approved character, is arranged com-entrieully within the said positive elemenl.

. The muslructiou, as illustrated, is, I find, well adapted to receive the filling of copper and cadmium, that is to say, the oxid of copper and cadmium, which oxidis prepared as follows: First, take a sull'icient or desired quantity of copper and cadinium, preferably in the proportion of one art of copper to two parts of cadmium, am then dissolve the same together in nitric acid.

have been thoroughly dissolved, add a suflicientquantityof a strong solution of potash or soda sons to precipitate the cop for and cadmium. I When the precipitation llns been thorou hly affected, and after th' precipitate has con allowed to settle, and after the acid, etc., has

been poured oil, 'then pour in water and wash the precipitate several times. This ste to-wit, the washing, must be repeated an made quite thoiou b. After this, the preci )itate can then be a lowed to dry in any suita le manner, and can be further treated or prepared in an suitable or desired mannor nd thus ma e ready cyhndric or other suitable support.

product of this method of treatment, is a 'dry which-is an whirl of or practically dry powder,

co per and cadmium, and which is a rfect mixture owing to the simultaneous issolv- This and .is adrmfor use as the active material,

in of the two metals. ra ly adapted or material to become active, of the positive element of a storage battery wherein the electrol to consists of a plain or simple alkaline so ution. When used as described, I

for lacin in the p 'l he final find that th opper and cadmium give excellcnt results, and insure a hi h degree of elliciency and serviccability for the batting. The copper and cadmium, that'is to say, t 0 resulting oxid or roduct, can then becompressed or packs in the space or etween the two concentric .wireigauzc-cylinders A and B; and, thus applied to the positive element, the sand material is held firmly and ellicicnlly in place. The positive elechamber nent thus Inade can be employed. if desired. in various kinds of known or approved stora p oyed to edvuntage, and with ood results, Ill 001111661011 with n no utlve emont l) m the shape of a perforate oylindiar, of coppt'l as the battery is charged, howevvr, said oxid turns to a metallic state. 'lho-n in the discharge, the copper und- 'cudniiuln again become oxids.

A ooppvr rod or tubo Y |NL SOH through the roll, its end X forming tho noun-tho polo ol' the battery;

\Vhut l cluin u's Ill invention is:

.l 1. The process of propurmg u. stom 'o-bulpea-batteries; but, obviously, lt'cun be onitery element. which iuvludos suitub y dis-- solving cop )or und cudlnium togolhor, prooipi'tajtlng t c hydrates of the metals thus dissolved, oonwrting the some to l'll('ll' oxids and subsequently securing the oxids thus obtainod in n. suitublo support.

2. The process of pro luring u storage-buttery element, 'lllt'll llltf udos sinmltumeouslv dissolving (-oppor und cadmium togvlhvr in nitrio acid, adding a sullioiont quantity of n. strong solution of alkaline hydroxid to prw i iituto tho hydrult-s of t'tlllptl't'llltl rudluilun,

ul oping tho prvvipituttto svltl t' tlu-n thor- 011 My wushiug tho sunnautdtpdrm'ilting the proyipitulo to dry in on suitublv n'mnnm'. und suhst-tpu-nt l sot-tiring tho oxhls thus ol tuiuod in u suituhlv support.

Il. "lhu pi'm-oss ol' propul'litilg u storuge-lmltvl'y (-lvnu-nl. whichincludes, us stops, tlu' slnltlllnllvous di solving of t-oppt-rnnd mulmiunl togotlu-l' in u suituhhurid prm-ipituting the h \'drnlv of dissolwd mv'tnls b udding un ulliulinv lrvdroxid, suitnhly washing und drying the prvt-ipitnto. und subsoquvntlv plat-l ng tho ultinmto produrt uithin u suitublo support.

4. The provt-ss of pro luring u stomgwhnttory vlvnu-nt. whirh mo udm; sinlullmioously dissolving mm purl ol' (-oppor and two parts sullioiontquantity ofu strong solution of ul hu-lhnhydroxid to prm-ipitutvtho hydrutt-sol (np'wl :Llltl t'qllllllllllll. allowing tho prot'i )itutr to sotllv, thon thoroughly u'ushin' t ho sumo und wrmilting tho prm'i )itulv to ill in any suituflv nmnnor, and su hsvquwllly sot-uring the oxids thus obtained in u suituhlo support.

lgnod by me ut thivugo, ("unl' count lllinui.-'. this 12th do of lh-u-nilipr, 1903. 

